Prototype II - Analysis Review of Results

The questionnaires revealed several properties that can be improved in the prototype.

Although the keyword search functionality was added to the system, some users, particularly Ingrid found it very difficult to type words. Older users may not be used to the QWERTY layout found on most keyboards. Furthermore, some longer words might take a long time to type in. For this reason, the next prototype will include predictive text. This will increase the speed with which data are inputted thus reduce customer effort.

During the NAV mode customers are not given with the option to view the products that are already in the trolley. The next prototype should provide the user with a list of these items through the user interface.

An important feature that was wrongly ignored during the design stage was to include a HELP section. It is vital to provide some sort of support to the customer. For instance let us assume that Ingrid wishes to talk to one of the staff members. It could be possible to do this through the HELP section by selecting the feature "Get In Touch with a Staff Member".

All the above were recorded and changes to the design and implementation are to be carried out during the next phase of the prototyping process.